import router from './routers';
import store from '@/store';
import Config from '@/settings';
import NProgress from 'nprogress'; // progress bar
import 'nprogress/nprogress.css';// progress bar style
import { getToken } from '@/utils/auth'; // getToken from cookie
// import { buildMenus } from '@/api/system/menu';
// import { filterAsyncRouter } from '@/store/modules/permission';

NProgress.configure({ showSpinner: false });// NProgress Configuration

const whiteList = ['/login'];// no redirect whitelist

router.beforeEach((to, from, next) => {
  if (to.meta.title) {
    document.title = to.meta.title + ' - ' + Config.title;
  }
  NProgress.start();
  if (getToken()) {
    // 已登录且要跳转的页面是登录页
    if (to.path === '/login') {
      next({ path: '/' });
      NProgress.done();
    } else {
      // console.warn(store.getters.asyncRouter);
      if (!store.getters.loadMenus) { // 判断当前用户是否已拉取完user_info信息
        store.dispatch('GetInfo').then(res => { // 拉取user_info
          // 动态路由，拉取菜单
          loadMenus(next, to, res);
        }).catch((err) => {
          console.log(err);
          store.dispatch('LogOut').then(() => {
            location.reload(); // 为了重新实例化vue-router对象 避免bug
          });
        });
      // 登录时未拉取 菜单，在此处拉取
      } else {
        next();
      }
    }
  } else {
    /* has no token*/
    if (whiteList.indexOf(to.path) !== -1) { // 在免登录白名单，直接进入
      next();
    } else {
      next(`/login?redirect=${to.fullPath}`); // 否则全部重定向到登录页
      NProgress.done();
    }
  }
});

export const loadMenus = (next, to, asyncRouterMap = []) => {
  // buildMenus().then(res => {
  // TODO 更新路由接口数据需要根据中台进行修改
  // const asyncRouter = filterAsyncRouter([]);
  asyncRouterMap.push({ path: '*', redirect: '/404', hidden: true });
  router.addRoutes(asyncRouterMap); // 动态添加可访问路由表
  store.dispatch('GenerateRoutes', asyncRouterMap).then(() => { // 存储路由
    next({ ...to, replace: true });
  });
  // })
};

router.afterEach(() => {
  NProgress.done(); // finish progress bar
});
